Can a new pill beat a standard heart drug for a stiff heart condition?
NCT ID NCT07755904
First seen Aug 10, 2026 · Last updated Sep 10, 2026 · Updated 3 times
Summary
This phase 3 trial is testing whether an experimental drug called BHB-1893 works better than the standard beta-blocker metoprolol for adults with symptomatic obstructive hypertrophic cardiomyopathy (oHCM), a condition where the heart muscle thickens and blocks blood flow. The study will enroll about 210 adults who are either already being treated for oHCM or have not yet started treatment. Participants will be randomly assigned to receive either BHB-1893 or metoprolol, and the main goal is to see if BHB-1893 improves exercise capacity (measured by peak oxygen uptake) more than metoprolol.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- BHB-1893 (an experimental oral drug)
- What this could lead to
- If BHB-1893 outperforms metoprolol, it could offer a new, more effective treatment option for people with obstructive hypertrophic cardiomyopathy, potentially improving their exercise capacity and quality of life.
- What could go wrong
- This is a phase 3 trial, but success is not guaranteed. BHB-1893 may not prove superior to metoprolol, and like any drug, it carries risks of side effects. The results will need careful review before any conclusions are drawn.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 210 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Oct 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: * Diagnosed with oHCM per the protocol specified criteria * NYHA Class II or III at screening visits * KCCQ-CSS that meets the protocol specified criteria at screening visits * Adequate acoustic windows for echocardiography Key Exclusion Criteria: * Medical indication for either β-blocker or calcium-channel blocker therapy, other than oHCM, prohibiting drug discontinuation * History of intolerance or medical contraindication to β-blocker therapy * Resting systolic blood pressure (SBP) of \>160 millimeters of mercury (mmHg) at screening visits * Resting heart rate of \>100 beats per minute (bpm) at screening visits * Significant valvular heart disease, defined as: * Moderate to severe valvular aortic stenosis or fixed subaortic obstruction; * Mitral regurgitation not due to systolic anterior motion of the mitral valve (per Investigator's judgment) Other protocol-defined criteria apply.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
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Contacts and locations
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Study contacts
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Contact
Email: •••••@•••••
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